Electrical recorder.



W. H. GONE.

BLEGTRICAL RECORDER.

APPLIOATION FILED MAR. 7, 19u

1,088,129,A Patented Feb. 24, 1914 y @uw X @M tlijconacts l2 This throws into circuit one oi the resistances 112,111, et cetera, and the' y regulates the strength of current, causing 'the lsolenoid 7 -to 'exert a definito amount pull iipon the core G and rotate the element l to 4bring the corresponding type into position. The operagage one oi:

tor then depresses the key and brings the auxiliary arm into engagement with ,the underlying-contact 32', thereby establishin@ the circuit through the .magnet 29 and causing it to operate. the hammer f2() t0` print. It will thus he seen vthat, both the type operating 'and the printing devices'are operated from a common handle and from a single `source of eleetromotive force. The mechanism is simple in operation and construction and* rapid in its action.

Having thus'descrihed my invention7 what I claim as new and desire to secure by Letters Patent is l. In an electrical recorder-,the combination of a movable type element, a solenoid upon the strength oi current in said. se? noid5 a source of electr-emotive force, gradl resistance, a controller arm for varying amount of said resistance in series with .s source and said solenoid for varying t .i current in ihelatter7 an auxiliary arm car-- ried by the main arm and adapted to move said main arm to different positions, and an electloinagnetically operated printing: dtvice controlled by said arms, said auxiliary arm being normally on open circuit and closahle at will for operating said. printing device. 50 3. An electrical recorder -co'mprising a rotary type element, a spring urgii'ig said type element in one direction, a solenoid i'or rotating said type element in opposition to the iorce of said spring, the amount of 5 lmovement depending upon the strength of current flowingv through said solenoid7 a soureeof electrical energy for said solenoid, graded resistance. for 'varying the strength of current flowing through said solenoid from said source, a controlling arm for vvarying the amount of said graded resistance in circuit,v an electromagnetically operatedI printing device cooperating with said type element, and means including an auxiliary arm on said controlling 'arm for operating said printing device. ln witness whereof, I'r have hereunto subscrihedjny name in the presence ol two witnesses.

wWILLIAM H. GONE.

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ll'itnesses HOWARD M. Cox, MARGARET D. Rona. 

